The previous commit's paths, run from a worktree on stortron against real streams with known answers: - vidcore HLS, Hope: 3 tracks in sync at 0.15 s (library copy: 0.13), 31 s, wyzie 503 -> OpenSubtitles fallback taken - HdHub file, VisionQuest S01E01: 0.07-0.10 s (full-file truth 0.02), 58 s - correction, No Other Choice as a file source: 7.04 s @1.001 (truth 7.01); the corrected output re-measures -0.03 s @1.000 against the full file Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>